[Qemu-devel] [PATCH v2 0/6] e1000 migration changes for 2.12

From: "Dr. David Alan Gilbert (git)" <dgilbert@redhat.com>
To: qemu-devel@nongnu.org, eswierk@skyportsystems.com,
	jasowang@redhat.com, pbonzini@redhat.com
Cc: quintela@redhat.com, peterx@redhat.com
Subject: [Qemu-devel] [PATCH v2 0/6] e1000 migration changes for 2.12
Date: Wed, 28 Mar 2018 17:36:24 +0100	[thread overview]
Message-ID: <20180328163630.48576-1-dgilbert@redhat.com> (raw)

From: "Dr. David Alan Gilbert" <dgilbert@redhat.com>

Hi,
  This set of patches change the e1000 migration code to make
it easier to keep with compatibility with older versions in backwards
migration.

I think the first 3 patches are fairly uncontrovercial and I would like
them for 2.12; it would be nice to have the lot since changing them
after we've shipped is much more difficult.

v2
  Ed and Paolo answered my question that I asked in the cover letter;
and I think I've followed the advice - although my testing has been
very light.  The new patches do two things:
   a) When we receive a stream without the subsection we duplicate the
received pops state into both props and tso_props.
   b) When we send without the subsection we decide which set to send
in the main part of the state based on which state was last changed.

Dave

Dr. David Alan Gilbert (6):
  e1000: Convert v3 fields to subsection
  e1000: Dupe offload data on reading old stream
  e1000: wire new subsection to property
  e1000: Migrate props via a temporary structure
  e1000: Choose which set of props to migrate
  e1000: Old machine types, turn new subsection off

 hw/net/e1000.c      | 103 ++++++++++++++++++++++++++++++++++++++++------------
 include/hw/compat.h |   4 ++
 2 files changed, 84 insertions(+), 23 deletions(-)

-- 
2.14.3